报告介绍 报告摘要：　　Spintronics relies on the generation, transmission, manipulation, and detection of spin current mediated by itinerant charges or magnetic excitations. Ferromagnetic resonance (FMR) spin pumping is a powerful technique in understanding pure spin currents. Building on the high-quality Y3Fe5O12 (YIG) films grown by our UHV off-axis sputtering technique and the large inverse spin...

报告介绍 Abstract： Rydberg interactions are now in use in many research groups for quantum informatio processing. I will present experiments showing the creation of entangled |W> states of ~10 atoms, and two-atom Bell states. While these experiments form a basis for future developments, scalable quantum computing will require improvement of many aspects of these experiments. I will address recent ideas a...

报告介绍 Abstract： Magnetic skyrmions might be used as information carriers in future advanced memories, logic gates and computing devices. However, there exists an obstacle known as the skyrmion Hall effect (SkHE). Consequently, the skyrmions in constricted geometries may be destroyed by touching the sample edges. In this proposed invited talk, Dr. Zhou will talk about his recent research results of skyrmi...

报告介绍 Abstract： Supercapacitors, batteries and fuel cells represent three distinct electrochemical energy conversion devices of increasing importance for applications in mobile electronics, electric vehicles, and renewable energy industry. A common feature of these devices involves coupled ion transport (and storage) and electron transport in active electrode materials. In this talk, I will discuss the c...

报告介绍 Abstract： Modeling of non-equilibrium excited state processes in nanoscale systems create new challenges to time-domain density functional theory (TDDFT) and nonadiabatic molecular dynamics (NAMD). Examples include proper treatment of quantum coherence, transition from coherent to hopping transport in long-range charge and energy transfer, super-exchange, and many-particle Auger-type processes. Mot...

报告介绍 Abstract： Powered by methodological breakthroughs and computing advances, first-principles calculations under the framework of density functional theory have today become an indispensable toolkit in the materials designer’s arsenal. In this talk, I will discuss two emerging trends that holds the promise to continue to push the envelope in computational design of materials. The first trend is ...

报告介绍  Abstract：Platinum (Pt) nanocrystals are commonly used in chemical reactions because of their unusual catalytic activity, for example, photocatalytic water splitting of water. In a typical design, Pt nanocrystals can accept photo-excited electrons from light absorbers such as semiconductor quantum dots (QDs) to catalyze hydrogen evolution reaction (HER) [1]. Charge transfer from QDs ...

报告介绍 Abstract： 　　If graphene had a band gap, it would probably be the optimum 2D system for electronics applications. Layered transition metal dichalcogenides (TMDs) with a robust intrinsic band gap appear as the next-best alternative. Only after a long search, however, optimum strategies have been devised to make low-resistance, ohmic contacts to TMDs . In the meantime, a new class of 2D semiconducto...

报告介绍 报告摘要： 利用DNA的高度特异性识别、结构可设计、生物相容性以及多种响应性，我们设计、制备了多种纯DNA以及多肽－DNA复合超分子水凝胶。这些凝胶具有优异的分子通透性、较高的力学强度、秒级成型、良好的触变性以及自愈合等特点；还可在化学组成、交联度、网络结构不改变的情况下，实现机械强度从10Pa到7000Pa的任意调整；在此基础上，我们将其应用于活细胞的3D打印和直写，探索了其在生物医学领域的应用。报告人简介：刘冬生，19...

报告介绍 Abstract：Conjugated polyelectrolytes (CPEs) featuring poly(phenylene ethynylene) and poly(thiophene) backbones substituted with ionic solubilizing groups are water soluble. These materials display a variety of interesting properties, including self-assembly into nanoscale aggregates, ability to process into layer-by-layer films and optical/stimuli responsive behaviour in the presence of ions, ...

报告介绍 Abstract： This lecture will introduce how tip-enhanced Raman spectroscopy (TERS)can be used for analytical applications, in particular to investigate the nanometer scale spatial organization of delicate 2-dimensional molecular systems. TERSis ideally suited for this purpose because itoffers excellent spatial resolution (≈ 10 nm) and sensitivity (down to single molecules for strong Raman ...

报告介绍 Abstract： 　　Scanning tunneling microscope (STM) is a powerful tool in studying atomic-scale nanomagnets and quantum materials by imaging, atom manipulation and performing local spectroscopy. In the first part of my talk, I will talk about exploring single-atom or few-atom quantum magnets with low-temperature and high magnetic field STM (1, 2). By combining all-electronic pump-probe technique...

报告介绍 报告摘要： 首先介绍Pt基催化剂表面氧还原反应的活性位、反应路径、高过电势及缓慢动力学根源等的理论计算研究结果，特别强调含氧吸附物种作为占位相、反应中间体及质子/电子转移中介体的多种功能。第二部分介绍关于金属-非金属杂化材料作为代Pt氧还原催化剂的研究结果，内容包括非金属B、S掺杂Pd基纳米催化剂的合成及非金属掺杂量控制，Pd-B、Pd-S纳米晶的氧还原电催化特性；热解型及分子型Fe/N-C催化剂的合成及氧还原电催化特性；...

报告介绍 Abstract： Among topological materials, experimental study of topological semimetals that host Dirac or Weyl fermions has just begun, even though these topological concepts were proposed nearly a century ago by Dirac and Weyl. The Dirac/Weyl fermions should be massless with extremely high mobility and non-trivial Berry phase, characteristics that are highly desirable for applications. Our bulk studi...

报告介绍 报告人简介：　　德国马普学会胶体与界面研究所所长Markus Antonietti教授是国际材料化学、纳米科技、高分子领域的著名学者。他在新型高分子和溶胶-凝胶的合成、多孔聚合物和碳材料、晶化调控、绿色化学和碳减排、能源材料及人工光化学合成等前沿交叉领域做出了一系列突出创新成果。已在国际顶尖期刊发表650篇SCI学术论文并被授予90项专利。近10年中, 有多于66篇学术论文被评为ESI“高引用论文”。他的学术成果被广泛引用...

报告介绍 Abstract： 　　I will discuss our recent progress on engineering of 2D materials, with a focus on metal ion intercalation and ultra-high temperature treatment (up to 3000-3500K). We developed a nano-battery platform that allows in situ measurement of optical, electrical and structure changes of 2D materials during ion intercalations. We used the nano-battery setup to investigate various properties o...